1045 lines
25 KiB
C
1045 lines
25 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/* drivers/net/phy/realtek.c
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*
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* Driver for Realtek PHYs
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*
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* Author: Johnson Leung <r58129@freescale.com>
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*
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* Copyright (c) 2004 Freescale Semiconductor, Inc.
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*/
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#include <linux/bitops.h>
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#include <linux/of.h>
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#include <linux/phy.h>
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#include <linux/module.h>
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#include <linux/delay.h>
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#define RTL821x_PHYSR 0x11
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#define RTL821x_PHYSR_DUPLEX BIT(13)
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#define RTL821x_PHYSR_SPEED GENMASK(15, 14)
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#define RTL821x_INER 0x12
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#define RTL8211B_INER_INIT 0x6400
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#define RTL8211E_INER_LINK_STATUS BIT(10)
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#define RTL8211F_INER_LINK_STATUS BIT(4)
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#define RTL821x_INSR 0x13
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#define RTL821x_EXT_PAGE_SELECT 0x1e
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#define RTL821x_PAGE_SELECT 0x1f
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#define RTL8211F_PHYCR1 0x18
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#define RTL8211F_PHYCR2 0x19
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#define RTL8211F_INSR 0x1d
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#define RTL8211F_TX_DELAY BIT(8)
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#define RTL8211F_RX_DELAY BIT(3)
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#define RTL8211F_ALDPS_PLL_OFF BIT(1)
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#define RTL8211F_ALDPS_ENABLE BIT(2)
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#define RTL8211F_ALDPS_XTAL_OFF BIT(12)
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#define RTL8211E_CTRL_DELAY BIT(13)
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#define RTL8211E_TX_DELAY BIT(12)
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#define RTL8211E_RX_DELAY BIT(11)
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#define RTL8211F_CLKOUT_EN BIT(0)
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#define RTL8201F_ISR 0x1e
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#define RTL8201F_ISR_ANERR BIT(15)
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#define RTL8201F_ISR_DUPLEX BIT(13)
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#define RTL8201F_ISR_LINK BIT(11)
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#define RTL8201F_ISR_MASK (RTL8201F_ISR_ANERR | \
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RTL8201F_ISR_DUPLEX | \
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RTL8201F_ISR_LINK)
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#define RTL8201F_IER 0x13
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#define RTL8366RB_POWER_SAVE 0x15
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#define RTL8366RB_POWER_SAVE_ON BIT(12)
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#define RTL_SUPPORTS_5000FULL BIT(14)
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#define RTL_SUPPORTS_2500FULL BIT(13)
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#define RTL_SUPPORTS_10000FULL BIT(0)
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#define RTL_ADV_2500FULL BIT(7)
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#define RTL_LPADV_10000FULL BIT(11)
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#define RTL_LPADV_5000FULL BIT(6)
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#define RTL_LPADV_2500FULL BIT(5)
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#define RTL9000A_GINMR 0x14
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#define RTL9000A_GINMR_LINK_STATUS BIT(4)
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#define RTLGEN_SPEED_MASK 0x0630
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#define RTL_GENERIC_PHYID 0x001cc800
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MODULE_DESCRIPTION("Realtek PHY driver");
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MODULE_AUTHOR("Johnson Leung");
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MODULE_LICENSE("GPL");
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struct rtl821x_priv {
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u16 phycr1;
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u16 phycr2;
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};
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static int rtl821x_read_page(struct phy_device *phydev)
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{
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return __phy_read(phydev, RTL821x_PAGE_SELECT);
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}
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static int rtl821x_write_page(struct phy_device *phydev, int page)
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{
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return __phy_write(phydev, RTL821x_PAGE_SELECT, page);
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}
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static int rtl821x_probe(struct phy_device *phydev)
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{
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struct device *dev = &phydev->mdio.dev;
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struct rtl821x_priv *priv;
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int ret;
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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ret = phy_read_paged(phydev, 0xa43, RTL8211F_PHYCR1);
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if (ret < 0)
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return ret;
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priv->phycr1 = ret & (RTL8211F_ALDPS_PLL_OFF | RTL8211F_ALDPS_ENABLE | RTL8211F_ALDPS_XTAL_OFF);
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if (of_property_read_bool(dev->of_node, "realtek,aldps-enable"))
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priv->phycr1 |= RTL8211F_ALDPS_PLL_OFF | RTL8211F_ALDPS_ENABLE | RTL8211F_ALDPS_XTAL_OFF;
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ret = phy_read_paged(phydev, 0xa43, RTL8211F_PHYCR2);
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if (ret < 0)
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return ret;
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priv->phycr2 = ret & RTL8211F_CLKOUT_EN;
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if (of_property_read_bool(dev->of_node, "realtek,clkout-disable"))
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priv->phycr2 &= ~RTL8211F_CLKOUT_EN;
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phydev->priv = priv;
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return 0;
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}
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static int rtl8201_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read(phydev, RTL8201F_ISR);
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return (err < 0) ? err : 0;
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}
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static int rtl821x_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read(phydev, RTL821x_INSR);
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return (err < 0) ? err : 0;
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}
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static int rtl8211f_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);
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return (err < 0) ? err : 0;
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}
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static int rtl8201_config_intr(struct phy_device *phydev)
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{
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u16 val;
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = rtl8201_ack_interrupt(phydev);
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if (err)
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return err;
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val = BIT(13) | BIT(12) | BIT(11);
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err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
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} else {
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val = 0;
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err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
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if (err)
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return err;
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err = rtl8201_ack_interrupt(phydev);
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}
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return err;
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}
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static int rtl8211b_config_intr(struct phy_device *phydev)
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{
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = rtl821x_ack_interrupt(phydev);
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if (err)
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return err;
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err = phy_write(phydev, RTL821x_INER,
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RTL8211B_INER_INIT);
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} else {
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err = phy_write(phydev, RTL821x_INER, 0);
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if (err)
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return err;
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err = rtl821x_ack_interrupt(phydev);
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}
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return err;
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}
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static int rtl8211e_config_intr(struct phy_device *phydev)
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{
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = rtl821x_ack_interrupt(phydev);
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if (err)
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return err;
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err = phy_write(phydev, RTL821x_INER,
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RTL8211E_INER_LINK_STATUS);
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} else {
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err = phy_write(phydev, RTL821x_INER, 0);
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if (err)
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return err;
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err = rtl821x_ack_interrupt(phydev);
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}
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return err;
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}
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static int rtl8211f_config_intr(struct phy_device *phydev)
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{
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u16 val;
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int err;
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if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
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err = rtl8211f_ack_interrupt(phydev);
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if (err)
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return err;
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val = RTL8211F_INER_LINK_STATUS;
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err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
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} else {
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val = 0;
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err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
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if (err)
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return err;
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err = rtl8211f_ack_interrupt(phydev);
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}
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return err;
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}
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static irqreturn_t rtl8201_handle_interrupt(struct phy_device *phydev)
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{
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int irq_status;
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irq_status = phy_read(phydev, RTL8201F_ISR);
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if (irq_status < 0) {
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phy_error(phydev);
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return IRQ_NONE;
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}
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if (!(irq_status & RTL8201F_ISR_MASK))
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return IRQ_NONE;
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phy_trigger_machine(phydev);
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return IRQ_HANDLED;
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}
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static irqreturn_t rtl821x_handle_interrupt(struct phy_device *phydev)
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{
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int irq_status, irq_enabled;
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irq_status = phy_read(phydev, RTL821x_INSR);
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if (irq_status < 0) {
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phy_error(phydev);
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return IRQ_NONE;
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}
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irq_enabled = phy_read(phydev, RTL821x_INER);
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if (irq_enabled < 0) {
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phy_error(phydev);
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return IRQ_NONE;
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}
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if (!(irq_status & irq_enabled))
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return IRQ_NONE;
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phy_trigger_machine(phydev);
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return IRQ_HANDLED;
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}
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static irqreturn_t rtl8211f_handle_interrupt(struct phy_device *phydev)
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{
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int irq_status;
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irq_status = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);
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if (irq_status < 0) {
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phy_error(phydev);
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return IRQ_NONE;
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}
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if (!(irq_status & RTL8211F_INER_LINK_STATUS))
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return IRQ_NONE;
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phy_trigger_machine(phydev);
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return IRQ_HANDLED;
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}
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static int rtl8211_config_aneg(struct phy_device *phydev)
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{
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int ret;
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ret = genphy_config_aneg(phydev);
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if (ret < 0)
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return ret;
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/* Quirk was copied from vendor driver. Unfortunately it includes no
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* description of the magic numbers.
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*/
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if (phydev->speed == SPEED_100 && phydev->autoneg == AUTONEG_DISABLE) {
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phy_write(phydev, 0x17, 0x2138);
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phy_write(phydev, 0x0e, 0x0260);
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} else {
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phy_write(phydev, 0x17, 0x2108);
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phy_write(phydev, 0x0e, 0x0000);
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}
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return 0;
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}
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static int rtl8211c_config_init(struct phy_device *phydev)
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{
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/* RTL8211C has an issue when operating in Gigabit slave mode */
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return phy_set_bits(phydev, MII_CTRL1000,
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CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER);
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}
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static int rtl8211f_config_init(struct phy_device *phydev)
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{
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struct rtl821x_priv *priv = phydev->priv;
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struct device *dev = &phydev->mdio.dev;
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u16 val_txdly, val_rxdly;
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int ret;
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ret = phy_modify_paged_changed(phydev, 0xa43, RTL8211F_PHYCR1,
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RTL8211F_ALDPS_PLL_OFF | RTL8211F_ALDPS_ENABLE | RTL8211F_ALDPS_XTAL_OFF,
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priv->phycr1);
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if (ret < 0) {
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dev_err(dev, "aldps mode configuration failed: %pe\n",
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ERR_PTR(ret));
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return ret;
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}
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switch (phydev->interface) {
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case PHY_INTERFACE_MODE_RGMII:
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val_txdly = 0;
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val_rxdly = 0;
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break;
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case PHY_INTERFACE_MODE_RGMII_RXID:
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val_txdly = 0;
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val_rxdly = RTL8211F_RX_DELAY;
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break;
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case PHY_INTERFACE_MODE_RGMII_TXID:
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val_txdly = RTL8211F_TX_DELAY;
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val_rxdly = 0;
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break;
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case PHY_INTERFACE_MODE_RGMII_ID:
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val_txdly = RTL8211F_TX_DELAY;
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val_rxdly = RTL8211F_RX_DELAY;
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break;
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default: /* the rest of the modes imply leaving delay as is. */
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return 0;
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}
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ret = phy_modify_paged_changed(phydev, 0xd08, 0x11, RTL8211F_TX_DELAY,
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val_txdly);
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if (ret < 0) {
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dev_err(dev, "Failed to update the TX delay register\n");
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return ret;
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} else if (ret) {
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dev_dbg(dev,
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"%s 2ns TX delay (and changing the value from pin-strapping RXD1 or the bootloader)\n",
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val_txdly ? "Enabling" : "Disabling");
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} else {
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dev_dbg(dev,
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"2ns TX delay was already %s (by pin-strapping RXD1 or bootloader configuration)\n",
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val_txdly ? "enabled" : "disabled");
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}
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ret = phy_modify_paged_changed(phydev, 0xd08, 0x15, RTL8211F_RX_DELAY,
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val_rxdly);
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if (ret < 0) {
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dev_err(dev, "Failed to update the RX delay register\n");
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return ret;
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} else if (ret) {
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dev_dbg(dev,
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"%s 2ns RX delay (and changing the value from pin-strapping RXD0 or the bootloader)\n",
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val_rxdly ? "Enabling" : "Disabling");
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} else {
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dev_dbg(dev,
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"2ns RX delay was already %s (by pin-strapping RXD0 or bootloader configuration)\n",
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val_rxdly ? "enabled" : "disabled");
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}
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ret = phy_modify_paged(phydev, 0xa43, RTL8211F_PHYCR2,
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RTL8211F_CLKOUT_EN, priv->phycr2);
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if (ret < 0) {
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dev_err(dev, "clkout configuration failed: %pe\n",
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ERR_PTR(ret));
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return ret;
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}
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return genphy_soft_reset(phydev);
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}
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static int rtl821x_resume(struct phy_device *phydev)
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{
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int ret;
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ret = genphy_resume(phydev);
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if (ret < 0)
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return ret;
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msleep(20);
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return 0;
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}
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static int rtl8211e_config_init(struct phy_device *phydev)
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{
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int ret = 0, oldpage;
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u16 val;
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/* enable TX/RX delay for rgmii-* modes, and disable them for rgmii. */
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switch (phydev->interface) {
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case PHY_INTERFACE_MODE_RGMII:
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val = RTL8211E_CTRL_DELAY | 0;
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break;
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case PHY_INTERFACE_MODE_RGMII_ID:
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val = RTL8211E_CTRL_DELAY | RTL8211E_TX_DELAY | RTL8211E_RX_DELAY;
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break;
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case PHY_INTERFACE_MODE_RGMII_RXID:
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val = RTL8211E_CTRL_DELAY | RTL8211E_RX_DELAY;
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break;
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case PHY_INTERFACE_MODE_RGMII_TXID:
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val = RTL8211E_CTRL_DELAY | RTL8211E_TX_DELAY;
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break;
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default: /* the rest of the modes imply leaving delays as is. */
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return 0;
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}
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/* According to a sample driver there is a 0x1c config register on the
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* 0xa4 extension page (0x7) layout. It can be used to disable/enable
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* the RX/TX delays otherwise controlled by RXDLY/TXDLY pins.
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* The configuration register definition:
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* 14 = reserved
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* 13 = Force Tx RX Delay controlled by bit12 bit11,
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* 12 = RX Delay, 11 = TX Delay
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* 10:0 = Test && debug settings reserved by realtek
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*/
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oldpage = phy_select_page(phydev, 0x7);
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if (oldpage < 0)
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goto err_restore_page;
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ret = __phy_write(phydev, RTL821x_EXT_PAGE_SELECT, 0xa4);
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if (ret)
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goto err_restore_page;
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ret = __phy_modify(phydev, 0x1c, RTL8211E_CTRL_DELAY
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| RTL8211E_TX_DELAY | RTL8211E_RX_DELAY,
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val);
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err_restore_page:
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return phy_restore_page(phydev, oldpage, ret);
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}
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static int rtl8211b_suspend(struct phy_device *phydev)
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{
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phy_write(phydev, MII_MMD_DATA, BIT(9));
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return genphy_suspend(phydev);
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}
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static int rtl8211b_resume(struct phy_device *phydev)
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{
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phy_write(phydev, MII_MMD_DATA, 0);
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return genphy_resume(phydev);
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}
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static int rtl8366rb_config_init(struct phy_device *phydev)
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{
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int ret;
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ret = phy_set_bits(phydev, RTL8366RB_POWER_SAVE,
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RTL8366RB_POWER_SAVE_ON);
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if (ret) {
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dev_err(&phydev->mdio.dev,
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"error enabling power management\n");
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}
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return ret;
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}
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/* get actual speed to cover the downshift case */
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static int rtlgen_get_speed(struct phy_device *phydev)
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{
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int val;
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if (!phydev->link)
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return 0;
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|
|
val = phy_read_paged(phydev, 0xa43, 0x12);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
switch (val & RTLGEN_SPEED_MASK) {
|
|
case 0x0000:
|
|
phydev->speed = SPEED_10;
|
|
break;
|
|
case 0x0010:
|
|
phydev->speed = SPEED_100;
|
|
break;
|
|
case 0x0020:
|
|
phydev->speed = SPEED_1000;
|
|
break;
|
|
case 0x0200:
|
|
phydev->speed = SPEED_10000;
|
|
break;
|
|
case 0x0210:
|
|
phydev->speed = SPEED_2500;
|
|
break;
|
|
case 0x0220:
|
|
phydev->speed = SPEED_5000;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtlgen_read_status(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
ret = genphy_read_status(phydev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return rtlgen_get_speed(phydev);
|
|
}
|
|
|
|
static int rtlgen_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
|
|
{
|
|
int ret;
|
|
|
|
if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {
|
|
rtl821x_write_page(phydev, 0xa5c);
|
|
ret = __phy_read(phydev, 0x12);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
|
|
rtl821x_write_page(phydev, 0xa5d);
|
|
ret = __phy_read(phydev, 0x10);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE) {
|
|
rtl821x_write_page(phydev, 0xa5d);
|
|
ret = __phy_read(phydev, 0x11);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else {
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtlgen_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
|
|
u16 val)
|
|
{
|
|
int ret;
|
|
|
|
if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
|
|
rtl821x_write_page(phydev, 0xa5d);
|
|
ret = __phy_write(phydev, 0x10, val);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else {
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl822x_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
|
|
{
|
|
int ret = rtlgen_read_mmd(phydev, devnum, regnum);
|
|
|
|
if (ret != -EOPNOTSUPP)
|
|
return ret;
|
|
|
|
if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2) {
|
|
rtl821x_write_page(phydev, 0xa6e);
|
|
ret = __phy_read(phydev, 0x16);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
|
|
rtl821x_write_page(phydev, 0xa6d);
|
|
ret = __phy_read(phydev, 0x12);
|
|
rtl821x_write_page(phydev, 0);
|
|
} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2) {
|
|
rtl821x_write_page(phydev, 0xa6d);
|
|
ret = __phy_read(phydev, 0x10);
|
|
rtl821x_write_page(phydev, 0);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl822x_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
|
|
u16 val)
|
|
{
|
|
int ret = rtlgen_write_mmd(phydev, devnum, regnum, val);
|
|
|
|
if (ret != -EOPNOTSUPP)
|
|
return ret;
|
|
|
|
if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
|
|
rtl821x_write_page(phydev, 0xa6d);
|
|
ret = __phy_write(phydev, 0x12, val);
|
|
rtl821x_write_page(phydev, 0);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl822x_get_features(struct phy_device *phydev)
|
|
{
|
|
int val;
|
|
|
|
val = phy_read_paged(phydev, 0xa61, 0x13);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
|
|
phydev->supported, val & RTL_SUPPORTS_2500FULL);
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
|
|
phydev->supported, val & RTL_SUPPORTS_5000FULL);
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
|
|
phydev->supported, val & RTL_SUPPORTS_10000FULL);
|
|
|
|
return genphy_read_abilities(phydev);
|
|
}
|
|
|
|
static int rtl822x_config_aneg(struct phy_device *phydev)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (phydev->autoneg == AUTONEG_ENABLE) {
|
|
u16 adv2500 = 0;
|
|
|
|
if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
|
|
phydev->advertising))
|
|
adv2500 = RTL_ADV_2500FULL;
|
|
|
|
ret = phy_modify_paged_changed(phydev, 0xa5d, 0x12,
|
|
RTL_ADV_2500FULL, adv2500);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return __genphy_config_aneg(phydev, ret);
|
|
}
|
|
|
|
static int rtl822x_read_status(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
if (phydev->autoneg == AUTONEG_ENABLE) {
|
|
int lpadv = phy_read_paged(phydev, 0xa5d, 0x13);
|
|
|
|
if (lpadv < 0)
|
|
return lpadv;
|
|
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
|
|
phydev->lp_advertising, lpadv & RTL_LPADV_10000FULL);
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
|
|
phydev->lp_advertising, lpadv & RTL_LPADV_5000FULL);
|
|
linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
|
|
phydev->lp_advertising, lpadv & RTL_LPADV_2500FULL);
|
|
}
|
|
|
|
ret = genphy_read_status(phydev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return rtlgen_get_speed(phydev);
|
|
}
|
|
|
|
static bool rtlgen_supports_2_5gbps(struct phy_device *phydev)
|
|
{
|
|
int val;
|
|
|
|
phy_write(phydev, RTL821x_PAGE_SELECT, 0xa61);
|
|
val = phy_read(phydev, 0x13);
|
|
phy_write(phydev, RTL821x_PAGE_SELECT, 0);
|
|
|
|
return val >= 0 && val & RTL_SUPPORTS_2500FULL;
|
|
}
|
|
|
|
static int rtlgen_match_phy_device(struct phy_device *phydev)
|
|
{
|
|
return phydev->phy_id == RTL_GENERIC_PHYID &&
|
|
!rtlgen_supports_2_5gbps(phydev);
|
|
}
|
|
|
|
static int rtl8226_match_phy_device(struct phy_device *phydev)
|
|
{
|
|
return phydev->phy_id == RTL_GENERIC_PHYID &&
|
|
rtlgen_supports_2_5gbps(phydev);
|
|
}
|
|
|
|
static int rtlgen_resume(struct phy_device *phydev)
|
|
{
|
|
int ret = genphy_resume(phydev);
|
|
|
|
/* Internal PHY's from RTL8168h up may not be instantly ready */
|
|
msleep(20);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl9000a_config_init(struct phy_device *phydev)
|
|
{
|
|
phydev->autoneg = AUTONEG_DISABLE;
|
|
phydev->speed = SPEED_100;
|
|
phydev->duplex = DUPLEX_FULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl9000a_config_aneg(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
u16 ctl = 0;
|
|
|
|
switch (phydev->master_slave_set) {
|
|
case MASTER_SLAVE_CFG_MASTER_FORCE:
|
|
ctl |= CTL1000_AS_MASTER;
|
|
break;
|
|
case MASTER_SLAVE_CFG_SLAVE_FORCE:
|
|
break;
|
|
case MASTER_SLAVE_CFG_UNKNOWN:
|
|
case MASTER_SLAVE_CFG_UNSUPPORTED:
|
|
return 0;
|
|
default:
|
|
phydev_warn(phydev, "Unsupported Master/Slave mode\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
ret = phy_modify_changed(phydev, MII_CTRL1000, CTL1000_AS_MASTER, ctl);
|
|
if (ret == 1)
|
|
ret = genphy_soft_reset(phydev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtl9000a_read_status(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
|
|
phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
|
|
|
|
ret = genphy_update_link(phydev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = phy_read(phydev, MII_CTRL1000);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret & CTL1000_AS_MASTER)
|
|
phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
|
|
else
|
|
phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
|
|
|
|
ret = phy_read(phydev, MII_STAT1000);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret & LPA_1000MSRES)
|
|
phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
|
|
else
|
|
phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl9000a_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = phy_read(phydev, RTL8211F_INSR);
|
|
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
static int rtl9000a_config_intr(struct phy_device *phydev)
|
|
{
|
|
u16 val;
|
|
int err;
|
|
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
|
|
err = rtl9000a_ack_interrupt(phydev);
|
|
if (err)
|
|
return err;
|
|
|
|
val = (u16)~RTL9000A_GINMR_LINK_STATUS;
|
|
err = phy_write_paged(phydev, 0xa42, RTL9000A_GINMR, val);
|
|
} else {
|
|
val = ~0;
|
|
err = phy_write_paged(phydev, 0xa42, RTL9000A_GINMR, val);
|
|
if (err)
|
|
return err;
|
|
|
|
err = rtl9000a_ack_interrupt(phydev);
|
|
}
|
|
|
|
return phy_write_paged(phydev, 0xa42, RTL9000A_GINMR, val);
|
|
}
|
|
|
|
static irqreturn_t rtl9000a_handle_interrupt(struct phy_device *phydev)
|
|
{
|
|
int irq_status;
|
|
|
|
irq_status = phy_read(phydev, RTL8211F_INSR);
|
|
if (irq_status < 0) {
|
|
phy_error(phydev);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
if (!(irq_status & RTL8211F_INER_LINK_STATUS))
|
|
return IRQ_NONE;
|
|
|
|
phy_trigger_machine(phydev);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static struct phy_driver realtek_drvs[] = {
|
|
{
|
|
PHY_ID_MATCH_EXACT(0x00008201),
|
|
.name = "RTL8201CP Ethernet",
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc816),
|
|
.name = "RTL8201F Fast Ethernet",
|
|
.config_intr = &rtl8201_config_intr,
|
|
.handle_interrupt = rtl8201_handle_interrupt,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_MODEL(0x001cc880),
|
|
.name = "RTL8208 Fast Ethernet",
|
|
.read_mmd = genphy_read_mmd_unsupported,
|
|
.write_mmd = genphy_write_mmd_unsupported,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc910),
|
|
.name = "RTL8211 Gigabit Ethernet",
|
|
.config_aneg = rtl8211_config_aneg,
|
|
.read_mmd = &genphy_read_mmd_unsupported,
|
|
.write_mmd = &genphy_write_mmd_unsupported,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc912),
|
|
.name = "RTL8211B Gigabit Ethernet",
|
|
.config_intr = &rtl8211b_config_intr,
|
|
.handle_interrupt = rtl821x_handle_interrupt,
|
|
.read_mmd = &genphy_read_mmd_unsupported,
|
|
.write_mmd = &genphy_write_mmd_unsupported,
|
|
.suspend = rtl8211b_suspend,
|
|
.resume = rtl8211b_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc913),
|
|
.name = "RTL8211C Gigabit Ethernet",
|
|
.config_init = rtl8211c_config_init,
|
|
.read_mmd = &genphy_read_mmd_unsupported,
|
|
.write_mmd = &genphy_write_mmd_unsupported,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc914),
|
|
.name = "RTL8211DN Gigabit Ethernet",
|
|
.config_intr = rtl8211e_config_intr,
|
|
.handle_interrupt = rtl821x_handle_interrupt,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc915),
|
|
.name = "RTL8211E Gigabit Ethernet",
|
|
.config_init = &rtl8211e_config_init,
|
|
.config_intr = &rtl8211e_config_intr,
|
|
.handle_interrupt = rtl821x_handle_interrupt,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc916),
|
|
.name = "RTL8211F Gigabit Ethernet",
|
|
.probe = rtl821x_probe,
|
|
.config_init = &rtl8211f_config_init,
|
|
.read_status = rtlgen_read_status,
|
|
.config_intr = &rtl8211f_config_intr,
|
|
.handle_interrupt = rtl8211f_handle_interrupt,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtl821x_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
.name = "Generic FE-GE Realtek PHY",
|
|
.match_phy_device = rtlgen_match_phy_device,
|
|
.read_status = rtlgen_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
.read_mmd = rtlgen_read_mmd,
|
|
.write_mmd = rtlgen_write_mmd,
|
|
}, {
|
|
.name = "RTL8226 2.5Gbps PHY",
|
|
.match_phy_device = rtl8226_match_phy_device,
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
.read_mmd = rtl822x_read_mmd,
|
|
.write_mmd = rtl822x_write_mmd,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc840),
|
|
.name = "RTL8226B_RTL8221B 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
.read_mmd = rtl822x_read_mmd,
|
|
.write_mmd = rtl822x_write_mmd,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc838),
|
|
.name = "RTL8226-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc848),
|
|
.name = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc849),
|
|
.name = "RTL8221B-VB-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc84a),
|
|
.name = "RTL8221B-VM-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc961),
|
|
.name = "RTL8366RB Gigabit Ethernet",
|
|
.config_init = &rtl8366rb_config_init,
|
|
/* These interrupts are handled by the irq controller
|
|
* embedded inside the RTL8366RB, they get unmasked when the
|
|
* irq is requested and ACKed by reading the status register,
|
|
* which is done by the irqchip code.
|
|
*/
|
|
.config_intr = genphy_no_config_intr,
|
|
.handle_interrupt = genphy_handle_interrupt_no_ack,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001ccb00),
|
|
.name = "RTL9000AA_RTL9000AN Ethernet",
|
|
.features = PHY_BASIC_T1_FEATURES,
|
|
.config_init = rtl9000a_config_init,
|
|
.config_aneg = rtl9000a_config_aneg,
|
|
.read_status = rtl9000a_read_status,
|
|
.config_intr = rtl9000a_config_intr,
|
|
.handle_interrupt = rtl9000a_handle_interrupt,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.read_page = rtl821x_read_page,
|
|
.write_page = rtl821x_write_page,
|
|
}, {
|
|
PHY_ID_MATCH_EXACT(0x001cc942),
|
|
.name = "RTL8365MB-VC Gigabit Ethernet",
|
|
/* Interrupt handling analogous to RTL8366RB */
|
|
.config_intr = genphy_no_config_intr,
|
|
.handle_interrupt = genphy_handle_interrupt_no_ack,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
},
|
|
};
|
|
|
|
module_phy_driver(realtek_drvs);
|
|
|
|
static const struct mdio_device_id __maybe_unused realtek_tbl[] = {
|
|
{ PHY_ID_MATCH_VENDOR(0x001cc800) },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(mdio, realtek_tbl);
|